Loose-leaf binder.



J. B. RYAN. LOOSE LEAF BINDER. APPLICATION FILED APILM, 1914.

Patented Feb. 23, 1915.

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JAMES B. RYAN, OF CHICAGO, ILLINOIS.

LOOSE-LEAF BINDER.

Specification of Letters Patent.

Patented Feb. as, 11915.

Application filed April 24, 1914. Serial No. 834,078.

To all whom it may concern:

Be it known that 1, Junie B. RYAN, a citizen of the United States, residing at Chicago, in the county of Cook-and State of Illinois, have invented new and useful Improvements in Loose-Leaf Binders, of which the following is a full, clear, and exact description.

My invention relates to loose leafbmders, and more particularly to that class 1n which a predetermined maximum quantity of sheets are removably secured.

The object of my invention is to confine and protect the rear edges of the leaves within a metal casing upon the rear surface of the back wall of which the title, or other indicia indicating the character of the matter contained in the book, may be applied.

A. further object is to clamp the leaves securely in position by simple means that can be easily and quickly removed whenever desired.

These and other objects I accomplish by the means hereinafter fully described and as particularly pointed out in the claims.

In the drawings: Figure 1 is a plan view of a fragment of my improved loose leaf book showing the back portion thereof. Fig.

2 is a transverse section taken on dotted line 2-2, Fig. 1. Fig. 3 is a longitudinal section of the back portion of the book taken on line 33, Fig. 1. Fig. 4 is a perspective view of the latch or clamping bar used in connection with my improvements. Fig. 5 is a longitudinal section of a modified construction of the back portion of the book embodying my improvements. Fig. 6 is a plan view of the back portion of my invention' with the top cover removed.

/ Referring to the drawings, A represents the top, B the under cover and C the leaves of the book embodying my improvements. The side edges of these covers and leaves near their rear edges are provided with recesses, a, a, which, when said covers and leaves are stacked ready to have their rear I preferably, made of one piece of sheet metal. The ends 0, (Z, of the casing are merely end extensions of the back-plate bent forward at right angles thereto, and the under leaf 9 consists of a lateral ofi-set from the under or longitudinal edge of the back-plate bent forward at right angles to the same, and having its ends extended and flanged upward and secured by riveting or otherwise to the outer surface of the ends 0, d. The length of the back 6 is slightly greater than the width of the book and the height of the same and of the ends 0, cl, are slightly greater than the thickness of thecombined leaves, and covers which it is intended to inclose within the casing. The upper edge of the end-wall 0 of the casing is provided with an outward flange 6, whereas the upper edgeof the opposite end 03 terminates, preferably, in the same longitudinal plane as back-plate Z). Both of these ends 0, cl, near their forward vertical edges, are provided with vertical ribs f, y that extend from the under leaf 9 to the top edge of the same.

When the rear ends of the covers and leaves of the book are seated in the casing and the ribs 7'', f, enter the recesses a thereof, they are locked or clamped in this position by means of a clamping bar 1). This bar is of a length exceeding the width of the back of the book and at one end its edges are bent under to form knuckles it, while the other end is bent downward to provide a tongue E which has an opening 70 therein. The end knuckles k of thisbar are caught under the flanged edge e of end-wall c of the casing, and the other end or tongue E of said bar is pushed down between the opposite end-wall (Z of the casing and a flat spring dog F in which position it is caught and held by reason of the protuberance on the upper end of the spring dog F snapping into opening Z2. This spring dog consists of a flat sheet metal spring the lower end of which is secured to the adjacent end (Z of the casing near the underplate 9 thereof, and the protuberance j thereof is made bypunching the metal of the spring F toward the end of the casing.

If desired, bar D may be bound within the fabric enveloping the upper cover A of the book, and the canvas or fabric enveloping the lower cover B may be extended and made to cover the outer and inner surfaces of'the back-plate?) of the casing. This is a mere bookbinders expedient, however, and may be adopted or not, according as desired.

Bar D is, preferably, made of cast metal, or it may be made of sheet metal having its length between its ends depressed and provided with a longitudinal central rib, sub stantially as shown in Fig. 4 of the drawlngs.

I prefer to split the end 7b of said bar, as

shown in Fig. 4, so as to provide a simple posed clamping bar having knuckles at one end that engage the flanged upper edge of said end-wall and the opposite end thereof engaging and suitably secured to the opposite end of said casing.

2. A loose leaf binder comprising a sheet metal casing the ends of which are provided with inwardly projecting ribs, suitable covers and pages inclosed within said casing having recessed edges engaged by said ribs and a clamping bar the ends of which are removably attached to the ends of said casing, and the central portion of which be tween said ends is bent downward.

3. A loose leaf binder comprising a sheet metal casing having a back-plate, end-walls and an under leaf, a clamping bar one end of which is removably hinged to the top of one end wall, and the opposite end of which is bent downward and overlaps the opposite end-wall of the casing, and means for removably securing the same in said position, and the covers and pages of a book adapted to be retained in said casing against longitudinal withdrawal and clamped in place by said bar.

4. A loose leaf binder comprising a sheet metal casing having a back-plate, end-walls and under-leaf, one of said end-walls having its upper edge flanged outward, a flat spring secured to the outer surface of the opposite end-wall having a protuberance near its free end projecting toward the same, a clamping bar one end of which is removably hinged to the flanged top edge of one end-wall and has its opposite end bent downward and perforated and inserted down between the free end of said spring and the opposite end-wall and engaged by said protuberance, and the covers and pages of a book adapted to be retained in said casing against longitudinal displacement and clamped in place by said bar.

5. A loose leaf binder comprising a sheet metal casing having a back-plate, end-walls and under-leaf, one of said end-walls having its upper edge flanged outward and recessed midway its length, a flat spring secured to the outer surface of the opposite end-wall having a protuberance near its free end projecting toward the same, a clamping bar one end of which is provided with knuckles and between the two a foreshortened downwardly bent finger that engage the flanged top edge of one end-wall and has its opposite end bent downward, and perforated and inserted down between the free end of said spring and the opposite end-wall and engaged by said protuberance, and the covers and pages of a book adapted to be retained in said casing against longitudinal displacement and clamped in place by said bar.

In witness whereof I have hereunto set my hand this 21st day of April, 1914.

JAMES B. RYAN.

Witnesses:

FRANK D. THOMASON, FLORENCE MITCHELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). C. 

